Rootstocks and tying materials for hipocotyledonar grafting of yellow passion fruit/Porta-enxertos e fixadores de enxerto para enxertia hipocotiledonar de maracujazeiro azedo

• Published in: Ciência rural 2016-01, p.30
• Main Authors: Santos, Carlos Enrique Barbosa, Neto, Alirio Jose da Cruz, Soares, Taliane Leila, de Oliveira, Eder Jorge, de Jesus, Onildo Nunes, Girardi, Eduardo Augusto
• Format: Article
• Language: Spanish
• ISSN: 0103-8478
• DOI: 10.1590/0103-8478cr20140154

The hipocotyledonar grafting of yellow passion fruit was evaluated onto Passiflora alata, P. edulis, P. cincinnata and P. gibertii with masking tape, metallic hair clip and spring plastic graf clip as tying materials. Experimental design was randomized blocks in a factorial 4 x 3 (rootstock x tying material) with 12 treatments, three replications and eight plants in the unit. The hipocotyledonar grafting method utilized was apical cleft grafting. Collected data included stem diameter, plant height and leaf number of rootstocks at grafting, and graft survival rate, stem diameter, leaf number and height 30, 60 and 90 days after grafting. Graft survival rate was high in general and equivalent among the evaluated rootstocks, indicating that apical cleft hipocotyledonar grafting was an efficient technique. All tying materials led to similar graft survival rates. Yellow passion fruit grafted onto P. alata presented lower canopy growth in relation to plants grafted onto P. edulis and P. gibertii, 90 days after grafting.